Australian Pipeline Valve - Installation, Operation and Maintenance Manual 29 API6D THROUGH CONDUIT EXPANDING GATE VALVE - AP400-405 SERIES A P P E N D I X 1 Materials for main parts A P P E N D I X 2 DIAGRAM 3 Bolting torque sequence: 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 Stud Lubrication • Re-tightening of body (with system de-pressurisation) bolting is permissible, if body leakage occurs. • Use a Copper-Based Anti-Seize Grease for stud lubrication. Part Name Material Standard Type Soft Seat Standard Type Metal Seat Body Carbon Steel Carbon Steel Bonnet Carbon Steel Carbon Steel Yoke Carbon Steel Carbon Steel Stem Stainless Steel Stainless Steel Seat Stainless Steel Carbon Steel + Stellite Gate Stainless Steel Carbon Steel + Stellite Packing Viton + PTFE + Expanding Graphite Viton + PTFE + Expanding Graphite Gland Flange Carbon Steel Carbon Steel Stem Nut Casting Copper Alloy Casting Copper Alloy Sealing Face Soft, Hard Sealing Metal to Metal Seat Insert PTFE Stellite Gasket 304 + Flexible Graphite 304 + Flexible Graphite The materials can be selected upon customer’s different requirements and product design specifications. Materials vary according to size, class & model, refer as built drawing.